Romania's Constantina Tomescu-Dita soared into the Bird's Nest, turning the Olympic marathon into a one-woman race.

罗马尼亚选手康斯坦丁娜·托梅斯库-迪塔“飞入”鸟巢，将奥运会马拉松比赛变成她一人独有的舞台。

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Germany's Irina Mikitenko, Romanian Constantina Dita and Catherine Ndereba of Kenya are amongst the favourites for the London crown.

BBC: Radcliffe out of London Marathon

Both will face competition from Olympic gold medallist Constantina Dita who will arrive in London for the eighth time seeking her first win in the event.

BBC: Radcliffe set for London return